Engine deaining appaeatus



y 1932- N. s. WILLIAMSON 1,866,739

ENGINE DRAINING APPARATUS Filed July 10. 1951 4 Sheets-Sheet 1 ENGINE DRA INING APPARATUS Filed July 10, 1951 4 Sheets-Sheet 2 7/ a I L.

Inventor flllorney y 1932- v N. s. WILLIAMSON 1,866,739

ENGINE DRAINING APPARATUS Filed July 10. 1951 4 Sheets-Sheet 3 M MW/amdon y 1932- N. s. WILLIAMSON 1,866,739

ENGINE DRAINING APPARATUS Filed July 10, 1951 4 sheets-sheet 4 Q j I 51'? '7 Li M Inventor WA fV/fl/almro r Patented July 12, 1932 UNITED STATE NEWTON S. WILLIAMSON, OF 'IBORGER, TEXAS ENGINE DRAIN ING APPARATUS Application filed Jill 10,

This invention relates to an engine draining apparatus and has for 1ts primary object to provide, in a manner as hereinafter set forth, an apparatus of this character em bodying' a novel construction and arrangement of parts through the medium of which the water will be automatically drained from the cooling system of the engine in case said engine should stop, thereby pre- 1 venting damage to the engine from freezing in cold weather.

Other objects of the invention are to provide an engine draining apparatus of the .character described which will be simple in construction, strong, durable, efficient, and

reliable in operation and which may be manufacturedat low cost.

All of the foregoing and still further obvjects and advantages of the invention will become apparent from a study of the following specification taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein Figure 1 is a view in side elevation showing an apparatus in accordance with this invention. V

Figure 2 is an enlarged view principally in side elevation and partially in section of the valve retaining and releasing mechanism.

Figure 3 is a horizontal sectional view taken substantially on the line 33 of Figure 2 looking upwardly, as indicated by the arrows.

Figure 1 is a view in vertical section through the water supply tank and also showing the valves in side elevation.

Figure 5 is a View showing the valves in vertical cross section. V

Referring now to the drawings in detail, it will be seen that the reference numeral 1 designates generally an engine of the natural gas type such as is in widespread use at present in oil fields and 2 designates the. engine shaft. One end portion of the engine shaft 2 is journaled in a bearing which is mounted on a vertically and horizontally adjustable block 8. The block 3 is mounted for vertical and horizontal ad ustmentthe arms 12 for securing the shaft in position extends upwardly and then downwardly in 1931. serial no. 550,036.

through the medium of the adjusting screws 4: on a plate 5 which, in turn, is anchored by bolts 6 on a concrete standard 7 A comparatively large gear 8 is mounted onthe engine shaft 2 and retained against rotation by a key 9 relative to said shaft. Setscrews 10 are threaded through the hub portion 11 of the gear 8 and engage the engine shaft 2 to retain the gear against longitudinal movement thereon, one of the set screws being engaged with the key 9,.

A horizontally disposed arm 12 extends from the block 8, said arm having a laterally offset free end portion disposed in alignment, with the gear 8 and having mountedrigidly thereon a vertical shaft 13. Pairs of nuts 14- are threaded on the Vertical shaft 13 and engaged with the upper and lower sides of thereon.

dium of the upper and lower pairs of nuts 16,

the nuts 16 constituting each pair being jambed together to retain the same in adjusted position on the shaft13, and to permit rotation of the bar 15' therebetween. Washers 17 are interposed between the upper and lower pairs of nuts 16 and the upper and lower, sides of the bar 15. The free end portion of the bar 15 is in the form of a handle 18.

Adjacent the handle 18 the bar 15 has rigidly mounted thereon an upstanding bracket 19 to the upper portion of which one end .of a keeper 20 is pivotally connected, as at 21. The free end portion of the keeper 20 a manner to provide a hook 22', the purpose of which will be more fully hereinafter set forth. Ahorizontally disposed. disk 23 is fixed on the keeper 20 adjacent thevhook 22.

A standard 24 is fixed on the bar 15 adjacent the vertical shaft 13 and said standard has formed integrally with its upper end a laterally ofi'set head 25 having'a recess or notch 26 extending thereinto from one side thereof and further havinga tapered opening 27 extending downwardly thereinto from its top and communicating with the inner portion of the notch or recess 26. The notch or recess 26 is for the reception of a ring 28 on one end of a cable, chain, or rope 29. The tapered opening 27 in the head is for the reception of the hook 22 of the keeper 20. The ring 28 is disposed in the notch or recess 26 in registry with the opening 27 and the hook 22 is inserted therethrough in a manner to anchor said ring to the head 25.

A vertical bearing 30 is mounted on an intermediate portion of the bar 15 and journaled therein is the vertical shaft 31 ofa speed responsive unit which is designated .of the outer marginal portion of said gear 8.

The speed responsive unit 32 comprises a cross head 34 which is mounted on the upper end portion of the shaft 31 through the medium of the upper and lower nuts 35.

- Weighted arms 36 are pivotally mounted for swinging movement in a vertical plane on the end portions of the cross head 34, the weights on said arms being designated by the reference numeral 37. The arms 36 are provided with inner end portions 38 which are adapted for operative engagement with the disk 23 on the keeper 20 in a manner to swing said keeper upwardly when the arms 36 swing downwardly, as when the engine stops.

An upstanding bracket 39 is rigidly mount-' ed on an intermediate portion of the arm 12 and has pivotally mounted for swinging movement on its upper end portion'an angular keeper 40 having a weight 41 on one end and a pair of notches in its other end for selective engagement with the bar 15 in a manner to retain said bar 15 against swinging movement in operative or inoperative position.

The reference numeral 42 designates a water supply tank which is mounted in a suitable enclosure 43 which, in turn, is spaced a suitable distance from the engine 1. Adelivery pipe 44 extends from the tank 42 to the water acket of the'engine and a return pipe 45 extends from the water jacket of the engine to a point above the tank 42.

A drain valve 46 is interposed in the lowest portion of the pipe 44 and includes a casing 47 having an opening 48 in its lower side provided with a valve seat with which a ball valve 49 is engageable. Access to the interior of the valve casing 47 may be had through the medium of a removable screw plug 50 which is threaded into one end portion of said casing. An arm 51 is pivotally mounted intermediate its ends on a bracket 52 and has an adjustable weight 53 mounted on one end portion. At its other end the arm 51 terminates in an upstanding portion which is operable through the opening 48 in the housing 47 for engagement with the ball valve 49 in a manner to disengage said ball valve from its seat when the weighted end of the arm 51 swings downwardly.

The reference numeral 54 designates generally a supply control valve which is mounted in the tank 42 on the intake of the pipe line 44. The supply control valve 53 is dual and includes a vertically disposed casing 54 having a horizontal partition 55 thereinprovided with an opening which establishes com munication between the upper and lower compartments 56 and 57 respectively into which the partition 55 divides the casing 54. Valve seats 58 and 59 are providedaround the outlets of the upper and lower compartments 56 and 57. The upper compartment 56 is provided with an inlet opening 60. Access to the lower compartment 57 may be had through the medium of a removable screw plug 61. A disk valve 62 is mounted for vertical reciprocation in the lower compartment 57 and is engageable on the seat 59 and a ball valve 63 is mounted for vertical reciprocation in the upper compartment 56 and is engageable on the seat 58, the valves 62 and 63 being connectedwith each other by a chain 64. A riser 65 extends from the top of the casing 54 and terminates in a flared upper end portion 66. A bracket 67 is rigidly mounted on the interior of the tank 42 and is clamped to the riser 66. A stem 68 extends upwardly from the ball valve 63 into the riser 66 and has connected thereto the lower end of a cable 69 which is trained over a pulley 70 which is :mounted on a suitable supporting beam 71 and said cable is connected with the cable 29. The cable 29 is trained around the pulleys 72 which are also mounted on the supporting beam 71.

A cable 73 is trained around a pulley 74 and has one end connected to the cable 29 and its other end connected with the weighted end of the arm 51.

In operation, when the bar 15 is swung to inoperative position the gear 33 is in mesh with the gear 8. When the ring is inserted in the notch or recess 26 of the head 25 and is retained therein by the hook 22 of the keeper 20, the weighted end of the arm' 51 is maintained in raised position and the valves 62 and 63 are supported in raised or open position through the medium of the cables 73, 69 and 29. Of course, when the weighted end of the arm 51 is in raised position, the ball valve 49 will engage its seat to close the outlet opening 48 of the casing 47. In this position of the valves,

water jacket of the engine 1 and return to the tank through the pipe 45. When the engine is in operation, the arms 36 having the weights 3'? on one end thereof, swing outwardly by centrifugal force and their inner ends are thus maintained out of engage ment with the disk 23. Now, should the engine stop, the wei hted ends of the arms 36 will swing downwardly thereby raising the other ends of said arms and engaging said other ends with the disk 23 for swinging the keeper 2O upwardly, thereby disengaging the hook 22 from the ring 28 and releasing the cable 29. Releasing of the cable 29, of course, will permit the valves 62 and 63 to drop by gravity on to their respective seats and the weighted end of the arm 51 will swing downwardly by gravity in a manner to move the upturned other end portion of said arm 51 upwardly through the opening 48 of the casing 47 to raise the ball valve 49 05 of its seat. Thus, the flow of water from the tank 42 into the supply pipe 4% of the engine will be cut off by the valves 62 and 63 and the water which is in the engine jacket and in the pipes 44 and 45 will be drained through the outlet opening 48 of the drain valve 46. A hook is mounted on the standard 24 over which the ring 28 is engaged when the drain apparatus is not in use. When the ring 28 is engaged over the hook 75 the weighted end of the arm 51 will be retained in raised position to permit the ball valve 19 to engage its seat and the valves 62 and 63 will be supported in raised position relative to their respective seats.

When the draining apparatus is not in use, the weightedend of the angular keeper 40 is swung upwardly in a manner to disengage the notched end of said keeper from the bar 15 to permit horizontal swinging movement of said bar for the purpose of disengaging the gear 33 from the gear 8. The angular keeper 40 is then released and the other notch thereof is engaged with the bar 15 for retaining said bar in inoperative position.

It is believed that the many advantages of an engine draining apparatus constructed in accordance with the present invention will be readily understood, and although the preferred embodiment of the invention is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will tall within the scope of the invention as claimed.

What is claimed is 1. In combination with an engine having a water jacket, a water supply tank, a pipe extending from the tank into the water jacket for conducting water to said jacket, a normally closed drain valve interposed in the pipe, a normally open supply control valve connected with the pipe, a cable connected with the valves, a keeper engageable with the cable for releasably securing said cable in a position to maintainthe first named a rotary shaft and a water jacket, a water supply tank, a pipe extending from the tank to the water jacket for supply water theretotrom the tank, a drain valve interposed in the pipe, a water supply control valve connected with the pipe in the tank for controlling the passage of water into said pipe from the tank, a gear fixed on the engine shaft, an arm mounted for swinging movement in a horizontal plane adjacent the gear, a stand ard fixed on the arm, a head on the upper end of the standard having a horizontal recess 7 extending thereinto from one side and further having an opening extending downwardly thereinto and communicating with the recess, a cable operatively connected with the valves for normally maintaining the first named valve in closed position and for normally maintaining the second named valve in open position, a ring on one end of the cable insertable in the recess in the head in registry with the opening in said head, a keeper mounted for swinging movement on the arm and having a hooked end portion insertable through the ring for retaining said ring in the recess and for maintaining the first and second named valves in closed and open positions, respectively, and speed responsive means mounted on the bar and engageable with the keeper for actuating said keeper in a manner to release the cable when the engine is not in operation.

In combination with an enginehaving a rotary shaft and a water jacket, a water 7 supply tank, a pipe extending from the tank to the water jacket for supplying water thereto from the tank, a, drain valve interposed in the pipe, a water supply control valve connected with the pipe in the tank for controlling the passage of water into said pipe from the tank, a gear fixed on the engine shaft, an arm mounted for swinging movement in a horizontal plane adjacent l the gear, a standard fixed onthe arm, a head on the upper end of the standard having a horizontal recess extending thereinto from one side and further having an opening extending downwardly thereinto and c0m-- municat-ing with the recess, a cable operatively connected with the valves for normally maintaining the. first named valve inclosed position and for normally maintaim ing the second named valve in open position, a ring on one end of the cable'insertable in the recess in the head in registry with the opening in said head, a keeper mounted for swinging movement on the arm and having a hooked end portion insertable through the ring for retaining said ring in the recess and for maintaining the first and second named valves in closed and open positions, respectively, and speed responsive means mounted on the bar and engageable with the keeper for actuating said keeper in a manner to release the cable when the engine is not in operation, a disk fixed on the keeper, the speed responsive means comprising a shaft rotatably mounted on the bar, a gear fixed on the shaft for engagement with the first named gear, a cross head fixed on the shaft, arms mounted for swinging movement on the cross head, weights on one end portion of the arms, the other end portions of the arms being engageable with the disk in a manner to swing the keeper-to inoperative position when the weighted arms move by gravity in one direction.

4. In combination with an engine having a rotary shaft and a water jacket, a water supply tank, a pipe extending from the tank to the water jacket for supplying water thereto from the tank, a drain valve interposed in the pipe, a water supply control valve connected with the pipe in the tank for controlling the passage of water into said pipe from the tank, a gear fixed on the engine shaft, an arm mounted for swinging movement in a horizontal plane adjacent the gear, a standard fixed on the arm, a head on the upper end of the standard having a horizontal recess extending thereinto from one side and further having an opening extendnected with the valves for normally main- 7 taining the first named valve in closed position and for normally maintaining the second named valve in open position, a ring on one end of the cable insertable in the recess in the head in registry with the opening in said head, a keeper mounted for swinging movement on the arm and having a hooked end portion insertable through the ring for retaining said ring in the recess and for maintaining the first and second named valves in closed and open positions, respectively, and speed responsive means mounted on the bar and engageable with the keeper for actuating said keeper in a manner to release the cable when the engine is not in operation, a disk fixed on the keeper, the speed responsive means comprising a shaft rotatably mounted on the bar, a gear fixed on the shaft for engagement with the first named gear, a crossv other end portions of the arms being engageable with the disk in a manner to swing the keeper to inoperative position when the weighted arms move by gravity in one direction, the bar being swingable to engage and disengage the second named gear from the first named gear, and means for securing said bar in operative and inoperative positions.

In testimony whereof I afiix my signature.

NEWTON S. WILLIAMSON. 

